Traditionally it is an ancient chinese finger toy. On the street it is used in reference to a girl that has been known to have sex with two men at the same time from both ends, hence resembling a chinese finger trap, complete with the pulling and pushing.

The Urban Dictionary Mug

When two guys (standing) are double teaming a midget (one in the mouth, one in the ass) and the midget is suspended on the two cocks without touching the ground at all. Then the midget bites down on the dick and clenches her ass cheeks so the two guys are stuck in her.

The Urban Dictionary Mug

A form of handjob where the woman places her palm on the head of the penis, draping her fingers down over the shaft. The woman typically then lifts her hand while simultaneously bringing her fingers together. This is generally used in "fooling around" situations, or by inexperienced women who don't really get what feels good and what doesn't.

The Urban Dictionary Mug

This sexual position, originating in Superior Grill last Friday, consists of two penises placed head to head. or "eye to eye" proverbially speaking. After in position, the Chinese Finger Trapper stretches the foreskin of his junk over that of the Chinese finger trappee and sways to and fro, thus simulating a Chinese Finger Trap. This goes on until he realizes how ridiculous this is.

The Urban Dictionary Mug

When two uncircumcised men are snoodling and the one with the girthier penis pulls back his foreskin, exposing the head, then the skinnier penis wraps his foreskin around the head of the larger, followed by the larger wrapping it's foreskin over the skinnier penis's foreskin.
For added suction, add water under the foreskin and let evaporate.

Can also be referred to as the "Super Snoodle"

Dude. I just walked in on Joel and Frank locked in a Chinese Finger Trap! I'm scarred for life!

The Urban Dictionary Mug

When you are fingering a girl and you pull out too quickly. Your finger is thus suddenly trapped by the Venus fly trap-like vagina. Only when you re-enter, and release slowly, is your finger able to exit.